Gateway (computer program)

Not to be confused with Gateway (telecommunications) or Router (computing).

A gateway is a link between two computer programs or systems such as Internet Forums. A gateway acts as a portal between two programs allowing them to share information by communicating between protocols on a computer or between dissimilar computers.

Some examples of common gateways:

E-mail <-> News server
News server <-> Internet forum
RSS aggregators <-> News server
XMPP <-> ICQ